Splitting Tensile Failure Behavior of Sandstone after Heat Treatment

摘要：

　　With the help of servo testing machine,Brazilian splitting experiment was carried out on sandstone of different lengths under two conditions of room temperature and high temperature treatment,and DIC method was used to analyze its strain and explore the variation rule of splitting tensile strength of sandstone.The experimental results show that the tensile strength of sandstone at room temperature and after heating both decreases with the increase of length.The expressions of size effect in the two cases are fitted.The experimental results provide references for the stability design of deep underground tunnels with high temperatures.

关键词： DIC method Rock mechanics Indirect tensile strength Heating treatment

作者: Tao LIU Zao-bao LIU Shi-jie YUE Wen-hua ZHA Tao FENG Guang-ze ZHANG

作者单位: Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines,College of Resources and School of Mining and Civil Engineering,Anhui University of Science and Technology,Huainan 232001 Chi Geological Innovation Studio of CREEC,China Railway Eryuan Engineering Group Co.Ltd,Chengdu 610031 C

会议类型: 国际会议

会议名称: 2019 International Conference on Civil Engineering, Mechanics and Materials Science (CEMMS 2019)(2019国际土木工程、力学和材料科学会议)

会议地点: 长沙

会议语种:英文

页码: 118-122

在线出版日期: 2019-08-30（万方平台首次上网日期，不代表论文的发表时间）